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Recent surging event of a glacier on Geladandong Peak on the Central Tibetan Plateau
Journal of Glaciology ( IF 2.8 ) Pub Date : 2021-07-27 , DOI: 10.1017/jog.2021.86
Junli Xu 1 , Donghui Shangguan 2 , Jian Wang 3
Affiliation  

Few surges on the Central Tibetan Plateau have been reported. Here, we report observations of a recent surging event of the Gangjiaquba Glacier in the Geladandong Peak region using surface velocity and morphology changes that were extracted from Landsat MSS/TM/ETM+/OLI images obtained from 1973 to 2019. The results reveal that the active surge of this glacier initiated at the end of summer in 2014 and terminated in 2016. The surge resulted in a total advance of 500 ± 11.2 m and many fresh crevasses in the surging zone. The maximum velocity was 1100 m a−1 during the active surge phase, which is much smaller than those observed in Karakoram but similar to observations in West Kunlun.

中文翻译:

青藏高原中部格拉丹东峰冰川近期涌动

据报道,青藏高原中部很少有浪涌。在这里,我们使用从 1973 年至 2019 年获得的 Landsat MSS/TM/ETM+/OLI 图像中提取的表面速度和形态变化,报告了对格拉丹东峰地区冈家曲巴冰川最近一次涌动事件的观察。结果表明,活跃的该冰川于2014年夏末开始涌动,2016年终止。涌动导致涌动区总进水500±11.2m,涌动区出现许多新裂隙。最大速度为 1100 ma-1在活跃的浪涌阶段,比在喀喇昆仑观测到的要小得多,但与西昆仑的观测相似。
更新日期:2021-07-27
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